In-Plane Crushing of Triangular Honeycomb Cores, Part I: Under Quasi-Static Loadings

Abstract:

Mechanical behaviors of triangular honeycombs cores (THCs) are investigated by using the finite element (FE) simulations under the in-plane quasi-static crushing loadings. The deformation process is described in the form of response curves and deformation mode diagrams. The force-displacement curves include four deformation regimes with distinct characteristics. The quasi-static plateau stresses are calculated for the THCs with different configuration parameters. The influences of ratio of cell wall thickness to edge length and expanding angle on the quasi-static plateau stress are discussed in detail. The quasi-static plateau stress is proportional to the relative density of THCs and the expanding angle determines the scale coefficient. The empirical formula of quasi-static plateau stress in terms of ratio of cell wall thickness to edge length and expanding angle is given based on the FE simulation results.

• Periodical: Advanced Materials Research (Volumes 476-478)
• Pages: 2501-2504
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.476-478.2501
• Online since: February 2012
• Authors: De Qiang Sun, Yan Feng Guo, Guo Tu Xu
• Keywords: Deformation Mode, In-Plane Quasi-Static Crushing, Quasi-Static Plateau Stress, Triangular Honeycomb Cores

References

[1] A.J. Wang, and D.L. McDowell: J. Eng. Mater. Technol. Vol. 126(2004), p.137.

[2] H.X. Zhu and N.J. Mills: Int. J. Solids Struct. Vol. 37(2000), p.1931.

[3] D. Sun and W. Zhang: Comp. Struct. Vol. 91(2009), p.168.

[4] Y. Liu and X.C. Zhang: Int. J. Impact Eng. Vol. 36(2009), p.98.

[5] X.M. Qiu, J. Zhang and T.X. Yu: Int. J. Impact Eng. Vol. 36(2009), p.1223.

[6] X.M. Qiu, J. Zhang and T.X. Yu: Int. J. Impact Eng. Vol. 36(2009), p.1231.

[7] Q.C. Wang and Z.J. Fan: Mech. Eng. Vol. 25(2003), p.20. (In Chinese)